Side bearing.



H. M. PERRY.

' SIDE BEARING. APPLICATION mio ocr. 22, 1911.

LQJYEM?. Patented Aug. 13, mi@

2 SHEETS-SHEET l.

H. M. PERM. SIDE BEARING.

APPLICATION FILED OCT. 22. i917.

Patented Aug. 13, 19M,

2 SHEETS-SHEET 2.

ilttlttilltt HUBERT IVI. PERRY, 0F CHICAGO, ILLINOIS, ASSIGN'R 'T0 ALBERT G. WELCH, UNDER THE WILL 0F EDWIN S. WOODS, BECEASED.

SIDE BEARING.

Application tiled October 22, 1917.

To all whom 'it may concern:

Be it. known that ll, H'U'nnn'r M. PERRY, a citizen ot the United States, and a resident of Chicago, in the county of Cook and Statel ot illinois, have invented certain new and useful improvements in Side Bearings; and l do herehy dec-lare that the following is a full, clear7 and exact description thereof, reference being had to the accompanying drawings, and to the letters ot'` reference marked thereon, which 'torni a part ot' this specification.

This invention relates to improvements in antit'riction bearings designed to transmitI load between two parts capable ot limited relative, oscillating movement. and is shown herein as applied to a side hearing tor raili road cars and more particularly,-to a side titl hearing to he attached to the truck holster as distinguished l'rom one carried h v the body bolster. The invention consists ot' the matters hereinafter described and more particulaily pointed out in thc appended claims.

lin the drawings:

ltigure .l is a view representing the bearing in side elevation with a part ot' the casing wall ot the hearing lirohen away to show the interior construction.

Fig. E2 is a top plan View ot the, hearing with a part ot the upright; `asing wall shown in transverse section.

Fig. El is a view representing a section through the hearing in a plano indicated hy the, lineI tlf-2l ot' Fig. 1.

li`ig. 4 is a view representing a longitudi nal. central section through the hearing.

Fig. 5 is a view representing a vertical section through the hearing in a plane indicated hy the line 5--5 oi Fig. l.

`Fig. ti is a. view illustrating the antitriction element ot the bearing.

ltclerring now to that embodiment oi my invention illustrated in the :u'cou|pan ving drawings :-l0 indicates a casing which contains the. antitriction hearing element. lt is provided at. its hase with laterally disposed ears ll tor attaching it. to the top ot the truck holster which is indicated h v the line, l2. The casing it) consists ot a shell, open top and bottom, and having upright side walls lil, lil and upright end walls 'l-l. l1', 'lhe end walls ll, 'l-lare provided at their bottom ends with inwardly extending. up 'wartlly inclined l'ianges or extensions l5, l5 which are cored to provide at each end ot the Specification of Letters Patent.

Patent-ett ating. ttl, l'liiltl.

Serial No. 197,759.

casing, longitudinally spaced, transverse, de-

pendlng ritos 1G, l't. The bottoni edges of the sidewalls i3, lf-l and the depending ribs ltl, 1G define a reetangutar opening in which is fixed a hottoin o plate 18, and preferably ahove this, a Wear platel 19. Said plates are held in place, the one upon the other., hy means of in wardty projecting lugs 20, 20 on the side walls of the, casing (there being four of saint lugs located substantiallyat the four corners of said plates) which engage the top tace ot the wear plate7 and byfloencling in the bottom ends ot the flanges 16, as clearly shown in Fig. el. The tlanges i6 are made parallel to the end walls ot the easing in. the first instance, hut when the device is assembled and after the bottom plate and its wear plate have been placed between and have. been brought up` against the lugs 2U, said fianges are bent under to retain the plates locked in this position.

2l 'indicates an antiirict-ion roller allait-li;m

is located within the casing and 'which is adapted lto roll longitudinally therein on the k or in a vertical position when the roller is` centered.

lto increase the overbalancing of the roller, it. is preferably cored at its ends to prodnee openings above the overhalance members l2 and above the center of the rollen. Said openings are preferably elongated and extend equally to either side et the roller diameter 2.1., which is int-ended to he perpemlicular when the roller is at its central or pre-determined position.

'lrunnions 2l are termed on the overlaat-- ance extensionsl 22, with their central axes located in the planeet" the aforesaid roller diameter 2l". In order to guide the roller and also to lock it within the casing, l provide grooves 25 in each side wall of the casing, said grooves being adapted to retl ti ieri llt)

geive and guide the trunnions 24. Each groove has divergent branches 25, 25a, one being inclined from the middle upwardly toward one end of the casing and the other being likewise inclined toward the opposite end of the casing. Said grooves have a third vertical branh 25b which opens through the bottom ol the casing and is adapted to guide the trunnions of the roller into the casing when the device is assembled.

Curved ribs 26 are provided at the four corners of the casing to be engaged by and to resist the further movement of the roller when it has reached the end of the casing. Said ribs are formed in an arc corresponding to the curvature of the roller.

Suitable ventilation openings 28 are provided at the end Walls ot' the easing near their bottom. Similar ventilation openings 25C are provided in the side walls oi' the casing in line With the branches 25h of the grooves 25.

The operation of the device will be apparent from tlie description thus far given.

lVhen not`und`e`1". load, the roller will naturally assume a central or other pre-determined position, as illustrated in Fig. l.

When the roller is engaged by the bearing plate (not shown) on the body bolster,

and is caused to roll toward one end of the casing,it will move to another position, for example, that shown in Fig. 4, the trunnicns 9A by their engagement in the branches of the grooves 25, guiding it in this movement and retaining the roller with its axis at right angles to the longitudinal axis of the casino- When the roller is released by the upper bearing plate, the overbalance extensions 22 will cause it to roll back to a central position which it will assume and will approximately retain until it is again engaged and rolledeither in one direction or the other.

One of the primary advantages of the construction described, is that no means causing a lift of the body bolster as the roller is rolled toward one or the other end oT the casing, is required in order to bring the roller back to central position.

By reason of the engagement of the roller trunnions 24 in the divergent branches 25 of the grooves the roller is prevented from being pushed in a sliding manner, under a suddenljar, from any position it snay have assumed in the casing. This is important, since without some means to prevent such operation of the roller, it might be left at a place Otherthan the pre-deterniined central position, when released from load, so that it would failf'to operate in the Tay in which it 'is intended.

I claim as my'invention:

1. In an antit'riction bearing comprising a easing with upright side and end Walls, a lnu'izontal bearing plate adapted to be applied through the bottom of said easing, a roller longitudinally movable in said easing and mounted on said bearing plate, said roller being provided with an overbalanee adapted to return it to a predetermined position within said casing and with eccentrieally placed trunnions, and the side walls of said easing having grooves i'or engagement with said trunnions, said grooves having upwardly inclined, divergent branches adapted to co-act with said trunnions, and with a downwardly extending branch opening through the bottom edges of the side walls of said casing.

2. In a side bearing, a easing, a horizontal bearing plate located within said casing, a roller mounted on said bearing plate and movable within said easing, said roller being provided at its ends with overbalance extensions adapted to return it to a predetermined position within said casing under release from load, said roller and easing being provided with nner-engaging parts adapted'to lock the roller within the casing and to guide it in its path of travel without interfering with its freedom of movement, and means for maintaining said roller with its at right angles to its path of travel.

3. In a side bearing, a easing having upright side and end walls, said easing being open at the top, means providing a bearing plate in the bottom of said casing, and a roller mounted on said bearing' plate and movable in the direction of the length of said casing, said roller being provided with overbalanee extensions at its ends.

4. In a side bearing, a casing having upright side and end walls, said casing being open at the top, means providing a bearing plate in the bottom oi" said casing, a roller mounted on said bearing plate and movable in the direction of the length of said casing, said roller being provided with overbalance extensions at its ends, said roller also having trunnions projecting beyond said exten sions, and the side walls oi said casing having grooves adapted to guide said trunnions when said roller is moved in either direction in said casingl in order to maintain said rollerI with its axis at right angles to its path of travel.

5. ln a side hearing, a casingl having upright side and end walls and being open at the top and bottom, means providing a horizontal bearing plate within and closing the open bottom oi lsaid easing, :1 roller mounted on sa-id bearingl plate and movable in the direction ot' the length of said easing, said roller being inserted into said easing through sa'd open bottom and having ove 'balance extensionsl at its ends, trunnions projecting beyond said extensions, the side walls of the casing each having diverging grooves adapted to guide said trunnions in the movement of said rollerin said easing, said divergng grooves 1n each side Wall,'merg1ng into a single upright groove which extends downthe top andbottom, means providing a horizontal bearingplate withinand elosing'the open bottom of said casing, a roller mounted on said bearing plate and movable in the direction of the length of said easing, said said open bottom and having overbalance eX- tensions at its ends, .trunnions projectin be yond said extensions,l the side Walls oi.g easing each having diverging grooves adaptthe f ed to guide said trunnions in the movement of said rollerA in said casing, said diverging grooves in each side Wall merging into a single upright groove which extends doWnwardly to Athe bottom edge of its respective side WalLthe said end Walls having ribs adapted to limit the movement of the roller upon said horizontal bearing plate.

In testimony Athat I claim the foregoing as my invention I 'affix my signature in the ypresence of two Witnesses, this 16th day of \Oetober,'A. D. 1917. roller being inserted into said casing through HUBERT M. PERRY Witnesses:

T. H. ALFREDS, KARL W. DOLL. 

